From: takashi (takashi_at_sympatico.ca)
Date: Sun 13 Oct 2002 - 20:44:33 BST
CONTEXT: 
5 Domains name
5 IPS
RECEIVING MAIL                                                                                                                  
                                                                                                                                    
 By default, in a real server                                                                     
 the software claims all active interfaces on the machine. The                                                                     
 parameter also controls delivery of mail to user@[ip.address].  
But in a vserver we know that the iproot is the first ip in the list in the conf....
So postfix listen only to the first ip and cannot receive mail from other interface , domaine , IPS ...
Anyway to care this ?? i cannot run this email server in the main server 
Thanks All for your help
Take care ..